Detachable base plate for a traffic sign



FIG. 1 is a top plan view of a detachable base plate for a traffic sign showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is an opposite end elevational view thereof; and,

FIG. 5 is a side elevational view thereof, with the opposite side being identical to that shown.

The broken line showing in FIG. 1 depicts a known rubber traffic sign base and forms no part of the present design. 

The ornamental design for a detachable base plate for a traffic sign, as shown and described. 